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受欢迎的函数 >

p(x)=3,x^4+5x^3+9x^2-6=-1

解答

p (x) = 3, x^{4} + 5 x^{3} + 9 x^{2} - 6 = - 1

解答

(x = - 1, x = 0.63109 \dots, p = 3 p = 3)

求解步骤

[p = 3 x^{4} + 5 x^{3} + 9 x^{2} - 6 = - 1]

解

x^{4} + 5 x^{3} + 9 x^{2} - 6 = - 1 : x = - 1, x \approx 0.63109 \dots

对于

p = 3

，用

- 1

替代

x : p = 3

对于

p = 3

，用

0.63109 \dots

替代

x : p = 3

将解代入原方程进行验证

因而，

p = 3, x^{4} + 5 x^{3} + 9 x^{2} - 6 = - 1

最后的解是

(x = - 1, x = 0.63109 \dots, p = 3 p = 3)

作图

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